| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: invention concerns metallurgy field and can be used for manufacturing worm gear rim, compression screw nut of mill, sleeves. For brass enduring increasing it contains, wt %: copper 60.0-70.0; aluminium 2.0-4.0; tin 0.2-0.4; iron 0.2-0.4; silicon 2.4-2.8; zirconium 0.2-0.6; manganese 0.2-0.6; lead 0.6-1.0; tantalum 0.05-0.1; calcium 0.02-0.06; zinc - the rest. ^ EFFECT: brass endurance increasing. ^ 1 tbl |
